Table 1.

Frequency distribution of respondents to The Next Step Trial baseline survey and the percent screened based on univariate cross-sectional and prospective analyses

Independent variablesFrequency distribution*
Cross-sectional analysis
Prospective analysis
Baseline survey (n = 2,693)
Dependent variables
n (%)Screened prior (n = 2,693)
CRCS initiation (n = 633)
CRCS maintenance (n = 2,060)
n (% screened per cell)
Background variables
    Age (y)
        <50730 (27)730 (70)222 (39)508 (79)
        50-59734 (27)734 (83)123 (54)611 (84)
        ≥601,229 (46)1,229 (77)288 (44)941 (87)
    Formal education
        ≤12 y1,116 (41)1,116 (72)316 (44)800 (84)
        >12 y1,559 (58)1,559 (80)311 (45)1,248 (85)
    Marital status
        Married2,397 (89)2,397 (77)546 (47)1,851 (84)
        Unmarried291 (11)291 (71)85 (29)206 (85)
    Employment status
        Retired1,226 (46)1,226 (76)300 (44)926 (85)
        Current employee1,467 (54)1,467 (77)333 (44)1,134 (83)
    Smoking status
        Smoked in past year470 (18)470 (70)142 (40)328 (81)
        Nonsmoker2,206 (82)2,206 (78)484 (46)1,722 (85)
    Family history of CRC or polyps
        Yes697 (26)697 (84)112 (58)585 (84)
        No1,996 (74)1,996 (74)521 (41)1,475 (84)
    Personal history of CRC polyps
        Yes794 (29)794 (87)103 (56)691 (89)
        No1,899 (71)1,899 (72)530 (42)1,369 (82)
Cognitive and psychological variables§
    Belief in the salience and coherence of CRCS
        High2,344 (87)2,344 (81)438 (50)1,906 (85)
        Low310 (12)310 (44)175 (29)135 (67)
    Belief in the effectiveness of CRCS in detecting CRC
        High2,534 (94)2,534 (78)561 (45)1,973 (85)
        Low89 (3)89 (52)43 (40)46 (67)
    Belief that polyp removal can prevent CRC
        High2,297 (85)2,297 (78)500 (47)1,797 (85)
        Low312 (12)312 (69)97 (33)215 (80)
    Belief that CRC can be cured
        High2,504 (93)2,504 (78)562 (46)1,942 (84)
        Low115 (4)115 (63)42 (24)73 (82)
    Perceived self-efficacy related to CRCS
        High1,686 (63)1,686 (87)224 (54)1,462 (87)
        Low946 (35)946 (60)380 (39)566 (77)
    Perceived susceptibility to colorectal polyps and cancer
        High793 (29)793 (84)123 (51)670 (88)
        Low1,813 (67)1,813 (74)474 (43)1,339 (82)
    Fear and worry about being diagnosed with CRC
        High441 (16)441 (80)90 (41)351 (83)
        Low2,105 (78)2,105 (76)497 (45)1,608 (85)
    Concern about screening-related discomfort
        High1,343 (50)1,343 (73)369 (44)974 (82)
        Low1,266 (47)1,266 (82)234 (46)1,032 (86)
Social influence variables§
    Support for CRCS among family members
        High2,102 (78)2,102 (81)390 (50)1,712 (86)
        Low369 (14)369 (55)166 (31)203 (71)
Intention to be screened§
    High2,061 (77)2,061 (84)331 (56)1,730 (86)
    Low495 (18)495 (50)246 (29)249 (73)
Program variables
    Worksite study condition
        Intervention1,260 (47)1,260 (75)317 (47)943 (84)
        Control1,433 (53)1,433 (78)316 (41)1,117 (84)
    CRCS availability
        Offsite, not all year long1,168 (43)1,168 (73)310 (45)858 (82)
        Onsite, all year long1,032 (38)1,032 (79)216 (41)816 (89)
        Onsite, not all year long493 (18)493 (78)107 (48)386 (79)
    FOBT kits distributed
        Other423 (16)320 (83)103 (49)320 (83)
        Employee pickup484 (18)366 (82)118 (52)366 (82)
        Mail and/or at appointment198 (7)152 (84)46 (46)152 (84)
        Mail only1,588 (59)1,222 (85)366 (40)1,222 (85)
    CRCS appointment scheduling
        1 option2,001 (74)1,518 (84)483 (43)1,518 (84)
        ≥2 options692 (26)542 (83)150 (47)542 (83)
  • * The denominator is 2,693 for the distribution (n and %) of independent variables; percents are based on valid responses and may not sum to 100.

  • For each of the three univariate analyses, the n's in each cell reflect the distribution of the dependent variable by each level of the independent variable, and the percents equal the number of individuals screened (numerator not shown) divided by the corresponding n in each cell (denominator). Percents do not add to 100 and should not be compared across dependent variables (columns) because different cases are included in each analysis.

  • Univariate associations eligible for multivariable analyses; P ≤ 0.10.

  • § All cognitive and psychological, social influence, and intention independent variables were dichotomized as high (≥3) and low (<3).